Rich is correct; physicians in general miss out on a key advantage of people who enter the workforce early: the time value of money. In addition, particularly in North America, physicians tend to begin their careers with enormous debt loads. The mean is over $100K.
Also true is the perceived need of (some) physicians to keep up with the Joneses and maintain conspicuous consumption. Not mentioned so far is the fact that most physicians are, in fact, small business owners, and many have high overheads that may amount to 50% of their gross revenues.
I recently met an 81 year old doctor who told me he couldn't afford to retire because he needed the income to pay for his wife's personal care home expenses (she has Alzheimers). What a terrible way to end a career! Of course I also know another MD who is in his eighties and works full time because he loves it.
I'm a physician too, but my situation is different. I grew up an only child in Europe where people save more. My parents paid my tuition. As an intern I was saving for a deposit on my first home. I didn't really get into tax efficient retirement savings till I became an attending physician at 33, having lived and worked in 3 countries and settled in Canada. I definitely live a more conservative lifestyle than most of my colleagues.
My total annual income is <$200K, most of which flows through my medical corporation, allowing me to defer a significant amount of tax. I save ~$60K a year, mostly in the corporation. My net worth doubled last year due to an inheritance and is now ~$2m. My assets are allocated approximately 30:60:10 apart from my home, vacation property, pension fund and some VC. Ialso have a significant global focus. By the time I am 55 I expect my NW to be $3m assuming I have an average ROI of at least 7%, and my corporation to be worth $1m of that. If it is, I will take ER. If not, I will wait till it is. I plan to live on corporate dividends until I can access my retirement funds at 69.
I did take a sabbatical some years ago and used it to do an MBA. After that I completed the Canadian Securities Course (
www.csi.ca) as I my MBA sparked an interest in finance. Anyone can take this course and it's well worth the effort if you want to learn how to invest more intelligently. Provided, of course, that you don't have a problem with Canadian content.